Add to ORKGThe theme of this thesis is the methodology of SEO for two differently oriented websites - first is about information and news from finance, the second is a presenta-tion of services construction company. The aim is to use SEO to ensure quality visits to both websites and describe the differences in the course of optimizing each of them. Achieving targets is based on the overall analysis of the original performance of web-sites and subsequent adjustments leading to better visibility on internet. My contribution to the field of SEO optimization is demonstration of analytical methods and websites corrections I made, description and demonstration of special software and online tools for optimization that can be used for commercial and non-comm...